Rizwan MumtazRWTH Aachen University

2nd COST0804 Training School Balearic Island University

Sink Sink

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Energy Efficiency and Routing in WSNs

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Multiple rate applications: A scenario

Rizwan MumtazRWTH Aachen University

2nd COST0804 Training School Balearic Island University

The Problem, Existing Solutions & their limitations

Temp monitoring: Sampled at the order of one message in several mins.

CTP, MultihopLQI,Dozer, CentRoute etc..

Surveillance systems: Sampled at the order of several messages per second.

Wisden, QCRA, IRFC, RCRT etc..

Compressed accelerometer bulk data, 100k byte in 10 mins. Packet s inter-related. Single packet loss jeopardize the whole bulk .

RBC, KOALA, RMST, FLUSH etc..

• Limitations:– All protocols support uniform data rate.– In presence of multiple rate traffic the protocols use conservative approach for

resource utilization. E.g: Temperature readings and accelerometer data on collected from the same network.